[PATCH libdrm 00/10] Add C8, 30bpp and FP16 support to modetest

[Ville Syrjälä]

On Mon, Jun 03, 2019 at 04:57:43PM -0400, Ilia Mirkin wrote:
> On Sun, Jun 2, 2019 at 8:40 PM Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> >
> > This series improves the pattern generation logic to support additional
> > formats, as well as a new "gradient" pattern (see patch comments on why
> > I found it useful).
> >
> > Furthermore, these formats are piped through to modetest, including the
> > ability to set a gamma table, which is necessary for the C8 indexed
> > format.
> >
> > This was tested on nouveau, and used for bring-up of the C8, XB30, and
> > FP16 formats on the NVIDIA hardware that supports these.
> 
> Just to follow up, I've successfully tested on an Intel SKL with C8
> and XB30/XR30 as well (and confirmed that the GAMMA_LUT gets unset in
> a sequence of C8 followed by XB30). FP16 was not available on the
> kernel I am currently using (and perhaps not the HW?)

https://patchwork.freedesktop.org/series/61345/

or a slightly older version:
git://github.com/vsyrjala/linux.git fp16_scanout_4

in case you want to test it.

> 
>   -ilia
> 
> >
> > Ilia Mirkin (10):
> >   util: add C8 format, support it with SMPTE pattern
> >   util: fix MAKE_RGBA macro for 10bpp modes
> >   util: add gradient pattern
> >   util: add fp16 format support
> >   util: add cairo drawing for 30bpp formats when available
> >   modetest: don't pretend that atomic mode includes a format
> >   modetest: add an add_property_optional variant that does not print
> >     errors
> >   modetest: add C8 support to generate SMPTE pattern
> >   modetest: add the ability to specify fill patterns on the commandline
> >   modetest: add FP16 format support
> >
> >  tests/modetest/buffers.c  |  13 ++
> >  tests/modetest/modetest.c | 109 ++++++++--
> >  tests/util/format.c       |   7 +
> >  tests/util/pattern.c      | 432 +++++++++++++++++++++++++++++++++++++-
> >  tests/util/pattern.h      |   7 +
> >  5 files changed, 543 insertions(+), 25 deletions(-)
> >
> > --
> > 2.21.0
> >

-- 
Ville Syrjälä
Intel